Biquadratic models for slider airbearing surfaces

Author

Baugh, Eric ; Weissner, Stefan ; Talke, Frank E.

Author_Institution

Center for Magnetic Recording Res., California Univ., San Diego, La Jolla, CA, USA

Volume

34

Issue

4

fYear

1998

fDate

7/1/1998 12:00:00 AM

Firstpage

1816

Lastpage

1818

Abstract

A new method to model the airbearing surface of arbitrarily shaped sliders for numerical simulations is presented. It uses a biquadratic surface fit calculated from profilometer data using the least squares method. Both the accuracy of the surface representation and the numerical flying height results for the biquadratic model and the standard crown/cross-crown model are compared. Although the modeling results are similar, the biquadratic fit is better suited to future slider designs due to its unambiguous definition

Keywords

least squares approximations; magnetic disc storage; magnetic heads; tribology; arbitrarily shaped slide; biquadratic models; biquadratic surface fit; least squares method; magnetic disks; magnetic heads; numerical flying height; numerical simulations; profilometer data; slider airbearing surfaces; slider design; standard crown/cross-crown model; surface representation; Data processing; Geometry; Least squares methods; Magnetic recording; Numerical models; Numerical simulation; Rails; Root mean square; Shape; Surface fitting;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.706716

Filename

706716